GIGABYTE B550M AORUS ELITE AX rev 1.3 AMD motherboard

AM4 Ryzen 5000 ready micro-ATX board

The GIGABYTE B550M AORUS ELITE AX rev 1.3 fits AMD Ryzen 5000 Series, 5000 G-Series, 4000 G-Series and 3000 Series processors in an AM4 socket. Four DDR4 slots accept up to 128 GB of dual-channel memory at 3200 MT/s with ECC and non-ECC unbuffered DIMMs. A single M.2 connector takes 2242, 2260, 2280 or 22110 drives while four SATA 6Gb/s ports handle additional storage. Realtek GbE LAN, Wi-Fi 802.11 ax and Bluetooth 5.3 provide wired and wireless networking.

Straightforward installation with BIOS flashback

The micro-ATX layout aligns with standard standoffs and the 24-pin plus 8-pin power connectors sit at the usual edges. Q-Flash Plus lets you update the BIOS using only a USB stick and standby power so a new CPU can be supported before the first boot. The lone M.2 slot shares bandwidth with the chipset PCIe 3.0 x4 slot; populating both can reduce the second slot to x1 speeds. Front-panel USB 3.2 Gen 1 headers are clearly labelled but sit near the board edge where large GPU backplates may overlap.

Steady output from a 5+3 digital VRM

The 5+3 pure digital VRM uses low RDS(on) MOSFETs to deliver clean current during extended multi-core workloads without throttling. Smart Fan 5 controls multiple headers based on VRM and chipset sensors so temperatures stay stable during long compile or render sessions. PCIe 4.0 x16 from the CPU maintains full graphics bandwidth while the chipset x4 and x1 slots run at 3.0 speeds for add-in cards. RGB Fusion 2.0 drives addressable and standard LED strips for status lighting that does not affect thermal headroom.